Abstract
In order to solve the serious roadway failure in Yaoqiao coal mine, Kaiser effect was used to measure the in-situ stress in level-800m roadway. Through making samples 6 special directions on the beamed rock cores and doing acoustic experiment, the unilateral plus stress values on each direction are obtained. Through coordinate transformation, the magnitude and direction of the primary stress of the original rock were calculated. The result shows that level - 800m belongs to high stress area, and there exists certain tectonic stress. The relative position of horizontal maximum and minimum ground stress is determined, which provides reference for the roadway layout and support in Yaoqiao mine.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: IOP Conference Series: Earth and Environmental Science
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
